“Scientific discovery may not be better than sex, but the satisfaction lasts longer.”

I believe things cannot make themselves impossible.

Eternity is a long time, especially towards the end.

Our only chance of long-term survival is not to remain lurking on planet Earth, but to spread out into space.

I’m really easy to get along with once you see it my way.

We live in the most probable of all possible worlds.

We are in danger of destroying ourselves by our greed and stupidity. We cannot remain looking inwards at ourselves on a small and increasingly polluted and overcrowded planet.

Science is beautiful when it makes simple explanations of phenomena or connections between different observations.

The meaning in life is not out there but in between our ears. In many ways this makes us the lords of creation.

One, remember to look up at the stars and not down at your feet. Two, never give up work. Work gives you meaning and purpose and life is empty without it. Three, if you are lucky enough to find love, remember it is there and don’t throw it away.

I have noticed even people who claim everything is predestined, and that we can do nothing to change it, look before they cross the road.

There is no unique picture of reality.

People who boast about their I.Q. are losers.

The thing about smart people is that they seem like crazy people to dumb people.

If aliens visit us, the outcome would be much as when Columbus landed in America, which didn’t turn out well for the Native Americans.

Keeping an active mind has been vital to my survival, as has been maintaining a sense of humor.

We don’t let animals suffer, so why humans?

How little do we discover in comparison of those things which now are and forever will be hidden from our sight? The whole of which I am fully persuaded no one will ever be able to dive into, and to explain their causes and effects.

Experimental confirmation of a prediction is merely a measurement. An experiment disproving a prediction is a discovery.

I know of nothing more inspiring than that of making discoveries for ones self.

For my part, I would say that the male sperm and seeds of plants have been penetrated so far that there is nothing further to discover in this great secret, but I could err in my opinion.

An experiment disproving a prediction is discovery.

The footsteps of Nature are to be trac’d, not only in her ordinary course, but when she seems to be put to her shifts, to make many doublings and turnings, and to use some kind of art in endeavouring to avoid our discovery.

(The discovery of penicillin) was a triumph of accident, a fortunate occurrence which happened while I was working on a purely academic bacteriological problem.

I discovered that my imagination came alive when I moved away from the immediate world around me.